Eric Dantan Rzewnicki wrote: >I'm interested in this, too. I haven't tried it, yet, but, i've read >some of the docs, so I'll try to share what I've learned so far. >Hopefully someone who has done this will fill in the gaps .... > >http://www.wakkanet.fi/~kaiv/ecasound/Documentation/examples.html >has a section "Using controller sources with effects" > >Example #4 shows this: >" ecasound -i file.wav -o /dev/dsp -ef3:1000,1.0,1.0 -kos:1,500,2000,1,0 \ >-kos:2,0.2,1.0,0.5,0 \ >-kx -km:1,0.1,1.5,2,1 > > Ok, let's get real whacky. Here a 1Hz sine oscillator is assigned >to the cutoff frequency, while other controller is controlling >resonance. Now we add a MIDI-controller, that controls the second sine >oscillator. " > > >The ecasound man page: >http://www.wakkanet.fi/~kaiv/ecasound/Documentation/ecasound_manpage.html >has a section on MIDI setup and another on CONTROL ENVELOPE SETUP. Under >the latter is this option: > >"-km:fx-param,start-value,end-value,controller,channel > >MIDI continuous controller (control change messages). Messages on the >MIDI-channel 'channel' that are coming from controller number >'controller' are used as the controller source. As recommended by the >MIDI-specification, channel numbering goes from 1 to 16. Possible >controller numbers are values from 0 to 127. The MIDI-device where bytes >are read from can be specified using -Md option. Otherwise the default >MIDI-device is used as specified in ~ecasound/ecasoundrc (see >ecasoundrc(5)). Defaults to /dev/midi." > > >To send CC messages to ecasound I think you could use alsa's virmidi >driver. There is a quick toot covering using a sequencer to control a >softsynth this way which might be applicable: > >http://linux-sound.org/quick-toots/4-sequencers_and_softsynths/quick-toot-midisynth_howto.html > > >then as far as a piece of software to do the actual controlling ... >there's something called vkeyboard ... perhaps one of the sequencers apps >like muse or rosegarden could be used? QMidiControl, xphat and others >listed here: http://sound.condorow.net/midi.html, might be interesting. >Though some of those links are broken ... > > >So, the pieces are all there, I think. But, as I said, I haven't tried >to put them together, yet. It looks like it is possible. But, anyway, I >hope this helps. > >-Eric Rz. > >On Thu, Nov 13, 2003 at 12:02:14PM +0100, Alex Marandon wrote: > > >>Hello, >> >>This my first post in this list so I introduce myself. I am non-native >>english speaker, so forgive me if my english is not correct, I hope at >>least it will be understandable ;) About my computer skills I'd say that >>I'm an advanced beginner in Linux and *BSD systems, i'm very far to be >>expert but I manage to deal with my own problems without much pain now. >>I work as a Perl/Python programmer and I slowly learn C/C++. >> >>For a few days now I've started to explore the world of linux >>audio-related software, so I'm a real newbie on this topic. I've played >>a little bit with ecasound (i love its concept) and I wonder if there is >>a way to control parameters of operators in realtime using software >>midi-controllers. If yes, what software to use ? What configuration ? Is >>it possible, and how to perform automation in order to replay what was >>done manually ? Any information about how to achive this goal is >>welcome. >> >>Thanks. >> >> > > > Not sure if it will help but take a look at PD (Pure Data). As I see, you can control any parameter with anything. http://crca.ucsd.edu/~msp/software.html Regards, Felix.
